64727812 has 6 divisors (see below), whose sum is σ = 113273678. Its totient is φ = 32363904.

The previous prime is 64727801. The next prime is 64727827. The reversal of 64727812 is 21872746.

It can be written as a sum of positive squares in only one way, i.e., 60590656 + 4137156 = 7784^2 + 2034^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8090973 + ... + 8090980.

Almost surely, 2^64727812 is an apocalyptic number.

It is an amenable number.

64727812 is a deficient number, since it is larger than the sum of its proper divisors (48545866).

64727812 is a wasteful number, since it uses less digits than its factorization.

64727812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16181957 (or 16181955 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 64727812 is about 8045.3596563485. The cubic root of 64727812 is about 401.5105633153.

The spelling of 64727812 in words is "sixty-four million, seven hundred twenty-seven thousand, eight hundred twelve".